... rubber sealing Material: silicone Hardness:Shore40,50,60,70,80,90 Approved:NSF,FDA,WRAS,KTW,W270,UL,ACS,ROHS Itemwater valve rubber ... P.G Series, ISO 361/1and Customized specificationThousands designs and exsiting molds are available for you.CertificationISO9001-2008, NSF,FDA ... meet European REACH, ROHS and PFOS commands. Partial meet PAHS,NP requirement.NBR,EPDM,FKM,Silicon rubber etc. are available. ...